Island



T. GORMAN. SUPPORT FOR SPINNING SPINDLES.

(No Model.)

No. 543,623. Patented July 30, 18 95.

UNITED STATES PATENT Onrrcn.

THOMAS GORMAN, OF WARREN, ASSIG-NOR OF ONE-HALF TO FRANK HAIL BROWN, OFIVARWIOK, RHODE ISLAND.

SUPPORT FORSPINNING-SPINDLES.

,SPEOIFICATION forming part of Letters Patent No. 543,623, dated July30,1895.

Application filed March 26, 1891. Renewed March 28, 1895. Serial No.543,590- (No model.)

To all whom it may concern:

Be it known that I, THOMAS GORMAN, of Warren, in the county of Bristoland State of Rhode Island, have invented certain new and usefulImprovements in Supports for Spinning-Spindles; and I do hereby declarethe following specification, taken in connection with the accompanyingdrawings, forming a part of the same, to bea full, clear, and exactdescription thereof.

My invention relates to the manner of sup-. porting the spindles of aspinning-machine, and more particularly to the manner of mounting thebolster in the bolster-rail.

The primary object of the invention is to give to the bolster freedom ofmovement in various directions, so as to enable said bol ster and thespindle supported therein to accommodate themselves to allthe varyingconditions to which they may be subjected, whereby the spindle may berun at a high rate of speed without chattering.

A further object of the invention is to secure the self-adjustment ofthe bolster with relation to its spindle, whereby a close-running fitbetween the spindle and its bolster will be automatically maintained.

To these ends the invention consists in the combinations andarrangements of parts hereinafter described.

Referring to the drawings, Figure 1 is a front view, partly in section,of a spindle and portions of the step and bolster-rails of aspinning-machine. Fig. 2 is a section on the line 00 0c of Fig. 1. Fig.3 is a plan View of a portion of the bolster-rail, taken on the line y yof Fig. 1; and Fig. 4 is a modification of Fig. 3 and showing thebolster supported vertically by the bolster-rail.

A represents the step-rail, having steps a of ordinary construction.

B is a tapering spindle.

O is the bolster-rail, which is provided with holes or openings ctoreceive the bolsters for the spindles.

D represents the bolster, which, as shown in the drawings, is providedwith a tapering bore corresponding with the tapered .portion 5 of thespindle B. The holecin the bolsterrail is made of somewhat largerdiameter than the external diameter of the bolster D,

as shown in the drawings, and so that said bolster may be free to movelaterally in the bolster-rail. The upper end of the bolsterD is, likethe remainder of the bolster, of circular shape, but is provided withone or more lugs or projections d, which lugs, when the bolster isinserted in the bolster-rail, loosely enter a recess or groove 0, formedin the up per surface of the bolster-rail to receive said lugs, as shownin the drawings, and thereby prevent the bolster from rotating with thespindle. These lugs may, if desired, rest upon the bottom of the groove0' and the bolster D be thus supported vertically, as shown in Fig. 4.If it is desired, however, to have the bolster self-adjusting verticallyto compensate for wear and to maintain a close-running fit between thespindle and bolster, the groove 0' in the bolster-rail is cut somewhatdeeper and so that the lugs at will not rest upon the bottom of thegroove, the bolster being then supported vertically by the taperingportion 1) of the spindle, as shown in Fig. 1.

When it is intended to have the bolster D supported vertically by thelugs 01, resting upon the bottom of the groove in the bolsterrail, it ispreferred, in order to enable the bolster to swing easily within certainlimits in the manner of a pendulum, to round the under side of each lug,so as to give to it more or less of a U form, as shown in the drawings.Cutting away the under side of each lug, so as to give it more or lessof a V shape, which is an obvious equivalent, will serve the samepurpose.

By the construction and arrangement of bolster and bolster-rail abovedescribed it will be seen that the bolster is free to move in variousdirections with relation to the bolster-rail. Thus the bolster isarranged loosely within the bolster-rail, so as to have a certain amountof lateral play therein. Again, the bolster is free to rise with reiation to the rail. Again, the bolster, when supported vertically by therail, is supported at or near its upper end and is thus suspended, so asto be capable of swinging, within certain limits, in the manner of apendulum, such swinging movement being facilitated by the rounding orcutting away of the under side of the supporting-lugs. Again, thebolster, while prevented from rotating with the spindle, is free to turnto some extent in the bolster-rail by reason of the fact that the pro-3' ectinglu gs are loosely arranged in the groove which receives them,such turning of the bolster being facilitated by the circular shape ofthe bolster at its upper end, and the construction of the parts is suchthat all danger of the bolster becoming cramped in the rail is avoided.As a result of the freedom of movement thus given to the bolster, saidbolster and its spindle are thereby enabled to readily and quicklyaccommodate themselves to all the varying conditions to which they maybe subjected, and said spindle may be run at ahigh rate of speedsmoothly and with out chattering, and especially so when the spindle ismade to fitthe bolster with a closerunning fit. Furthermore, byemploying a bolster with a tapering bore in combination with acorrespondingly-tapered spindle and by so mounting the bolster in therail that said bolster is not supported vertically by said rail thebolster will be self-adjusting, and in case of wear will serve toautomatically maintain a close-running fit between the spindle andbolster.

The manner'of combining the bolster with the bolster -rail abovedescribed not only leaves the bolster free to rise with relation to therail in the operation of spinning but also permits the bolster to bereadily inserted in and removed from the bolsterrail at any time, andlikewise permits the spindle with its bolster to be readily raised outof its step for cleaning or any other purpose.

I do not wish to limit the main feature of my invention to a taperingspindle and a bolster having a correspondingly-tapered bore, since it isevident that the same may be likewise employed with a straight spindleand a bolster having a straight bore.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination of a bolster rail provided with a groove or recess inits upper surface, and a bolster arranged loosely within said bolsterrail, said bolster being provided at or near its upper end with one ormorelugs or projections adapted to enter the groove in the bolster railand prevent said bolster from rotating in said rail, substantially asdescribed.

2. The combinationof a bolster rail having a groove or recess in itsupper surface, anda bolster arranged loosely within said bolster rail soas to have lateral play therein, and so as to be free to rise withrelation to said rail, said bolster being provided at or near its up perend with one or more lugs or projections adapted to enter the groove inthe bolster rail, whereby said bolster will be prevented from rotatingin said rail, but will be free to rise with relation to said rail,substantially as described.

The combination of a bolster rail provided with a groove or recess inits upper surface, and a bolster arranged loosely within said bolsterrail, said bolster being provided at or near its upper end with one ormore lugs or projections adapted to enter the groove in the bolsterrail, said lugs being rounded or cut away on their under side,substantially as described.

4. The combination with a tapering spindle and a bolster rail, of abolster provided with a tapering bore to fit said tapering spindle, saidbolster being loosely arranged in the bolster rail and unsupportedvertically by said bolster rail, and means for preventing the rotationof said bolster, whereby said bolster will be self-adjusting to secureand maintain a close running fit between said bolster and spindle,substantially as described.

THOMAS GORMAN.

Witnesses:

W. II. THURSTON, S. J. MURPHY.

